Hey guys, i have the same at home
It's about 920-930 7-8-7-20 1.65v on R2E.

But Memtest is not wrong with vdimm. I use Vista 64bit, so 5.95Gb are used, and it's the most hardcore test for ram. But maybe with 32bit OS, Prime is hte best.

Moreover, i don't think it's samsung chips on this kit...